Did You Know...
...that the video game, Pong, was invented by a guy who graduated at the bottom of his engineering class? Nolan Bushnell spent more time running the games at a local amusement park than he did on his studies at the University of Utah. His dreams of working for Disney's amusement empire were dashed when the company wouldn't hire him. Taking a boring job, Nolan daydreamed about electronic versions of popular games. He invented Pong, the first video game, and went on to found Atari Co.
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| Number | Title | Issue Date |
| 8084642 | Method of improving the crushing strength, impact resistance and compressibility of urea, and urea composition A method of improving the crushing strength, impact resistance and the compressibility of urea granules by the addition of a compound to the molten urea, wherein the compound comprises both a polyvinyl compound and an organic molecule consisting of 1-10 carbon atoms... | 12/27/2011 |
| 8080687 | Method for reducing aerosol emissions in a urea granulation plant The invention relates to a process for the granulation of a concentrated urea solution whereas the granulation produces a urea granulate and a dust laden air, which is then fed into a dust scrubber which removes the coarser dust with a less concentrated urea solutio... | 12/20/2011 |
| 7786327 | Method for co-producing electric power and urea from carbonaceous material A method for co-producing electric power and urea from carbonaceous fuels such as coal, by pyrolizing the coal with oxygen to produce a raw rich gas and a hot char which is gasified with air to produce a raw lean gas. Subsequent to the cleaning of the two gases, the... | 08/31/2010 |
| 7674932 | Method for the production of urea from natural gas Disclosed is a method for the production of urea from natural gas, wherein a) natural gas undergoes partial oxidation or autothermal reformation with a gas containing oxygen in a first step and the raw synthesis gas thus arising, consisting essentially of carbon mon... | 03/09/2010 |
| 7632970 | Asymmetric urea compound and process for producing asymmetric compound by asymmetric conjugate addition reaction with the same as catalyst The present invention relates to a production method of asymmetric compound (IV) which includes conjugately adding nucleophilic reagent (III) to compound (II) in the presence of asymmetric urea compound (I). The present invention provides a non-metallic asymmetric c... | 12/15/2009 |
| 7163792 | Compositions and methods for optimized hybridization using modified solutions The invention provides a composition, kit and method for hybridizing a probe and target at a temperature lower than their standard hybridization temperature. The chemical component added to the composition has a formula R(NH2)C═O, where R is amino or al... | 01/16/2007 |
| 6962945 | N-aryloxypropanolyl-N′-phenethyl-urea The present invention provides N-aryloxypropanolyl-N′-phenethyl-urea derivatives of formula 3, method for their preparation and use thereof as potent appetite suppressants for treatment of obesity wherein R is select... | 11/08/2005 |
| 6420398 | Urea derivatives having nitrogen aromatic heterocycle An object of the present invention is to provide novel urea derivatives which have TNF- production inhibitory effects and are useful as therapeutic agents for various diseases, particularly as therapeutic agents for autoimmune diseases such as rheu... | 07/16/2002 |
| 6369073 | Compounds having reversible inhibiting activity of carnitine palmitoyl-transferase Compounds of formula (I) ##STR1## wherein the groups are as defined in the description are disclosed. The compounds of formula (I) are endowed with reversible inhibiting activity of carnitine palmitoyl-transferase and are useful in the preparation of medi... | 04/09/2002 |
| 6278021 | Reduced particle-size urea A process for producing an urea preparation of reduced particle-size and narrow particle-size distribution by using an air milling process is provided. Also provided is an urea preparation of reduced particle-size, narrow particle-size distribution, and h... | 08/21/2001 |
| 5985968 | Surface tension reduction with N,N-dialkyl ureas This invention provides water-based compositions, particularly coating, ink, and agricultural compositions, manifesting reduced equilibrium and dynamic surface tension by the incorporation of an effective amount of certain N,N-dialkyl urea compounds of th... | 11/16/1999 |
| 5961670 | Sulfur dyes New sulfur dyes comprising in their preparation at least one sulfur dye intermediate of the formula I ##STR1## wherein R and R1 are independently nitro, nitroso or amino, are produced by including in their preparation at least one modifyin... | 10/05/1999 |
| 5847209 | Process for recovery of solid and reusable urea from the urea adduction process A process for recovery of solid and reusable urea from the urea adduction process. Refinery streams are subjected to a step of urea adduction for removal of unwanted branched products, aromatics and sulphur. The adduct is purified, dried and then subjecte... | 12/08/1998 |
| 5770739 | Non-aqueous hydrogen peroxide complex An apparatus and process for hydrogen peroxide vapor sterilization of medical instruments and similar devices make use of hydrogen peroxide vapor released from a substantially non-aqueous organic hydrogen peroxide complex, such as a urea-peroxide complex.... | 06/23/1998 |
| 5716591 | Process for producing calcium nitrate-urea adduct Calcium nitrate-urea adduct, a product having the formula Ca(NO3)2.4CO(NH2)2 !, is obtained by means of a process which basically consists of the following steps: mixing molten urea and calcium nitrate; feeding the... | 02/10/1998 |
| 5717118 | Process for preparing amido-carboxylic acid esters having internal amide linkages The present invention relates to a one-step process for preparing amido-carboxylic acid esters having the amide nitrogen positioned between two carbonyl carbons by reacting a carboxylic acid or carboxylic acid ester with a monohydric alcohol and either a ... | 02/10/1998 |
| 5705138 | Process for manufacturing synthetic gas and associated utilization The invention relates to the manufacturing of synthetic gas according to which the following stages are performed within a single housing: partial combustion in a non catalytic combustion chamber, contacting of the combustion gases with a catalytic element, complem... | 01/06/1998 |
| 5650090 | Compositions for thermal energy storage or thermal energy generation A composition for thermal energy storage or thermal energy generation comprising a silica based gel or dry powder in the form of silica particles containing a water/urea phase change material for thermal energy storage or an endothermic or exothermic comp... | 07/22/1997 |
| 5494498 | Methods for using concentrated nitrogen-containing fertilizers Urea increases the solute content of a fertilizer comprising water and at least two different nitrate-containing compounds selected from the group consisting of ammonium nitrate, alkali metal nitrates, and alkaline earth metal nitrates. In addition, urea ... | 02/27/1996 |
| 5476527 | White atoxic urea fertilizer composition A fertilizer composition is provided which is characterized by high mechanical resistance, anti-caking properties, and a substantially white color, and which fertilizer includes urea and a hydrosoluble additive selected from the group consisting of phosph... | 12/19/1995 |
| 5470370 | Complex composition resulting from the action of urea on a sulfuric sludge of petroleum origin, process for the preparation thereof and use thereof as a source of fertilizing material A complex composition formed by the product resulting from the action of urea on a sludge of petroleum origin containing by weight from 50 to 99% of sulfuric acid and from 1 to 20% of organic residues. The acid sludge may contain water and often comes fro... | 11/28/1995 |
| 5436372 | Solid state displacement elements The invention is intended to provide novel solid state displacement elements that have an extent of displacement. The solid state displacement element has an intercalation compound in which a polar compound (B) is mixed with an inorganic layered compound ... | 07/25/1995 |
| 5417737 | Concentrated nitrogen-containing fertilizers having increased alkaline earth metal uptake Urea increases the solute content of a fertilizer comprising water and at least two different nitrate-containing compounds selected from the group consisting of ammonium nitrate, alkali metal nitrates, and alkaline earth metal nitrates. In addition, urea ... | 05/23/1995 |
| 5399755 | Process and equipment for the hydrolysis of residual urea in the water from synthesis plants Process for the hydrolysis of urea contained in the process water from plants for the synthesis of urea consisting of the thermic treatment of the water containing urea and of the removal by stripping of the compounds from decomposition of the urea (CO | 03/21/1995 |
| 5380943 | Process and plant for the production of urea with differentiated yield reaction spaces Process for the industrial synthesis of urea, by reacting ammonia (NH3) and carbon dioxide (CO2) in at least one reaction space, at high pressures and temperatures and by recirculating at least part of the non-reacted products obtain... | 01/10/1995 |
| 5276130 | Aminoplast resin or aminoplast resin precursor According to the present invention, a ଲ-dicarbonyl functionality, an ,ଲ-unsaturation functionality, or a vinylogous amide functionality is incorporated into an aminoplast resin or an aminoplast resin precursor.... | 01/04/1994 |
| 5266097 | Aminoureaformaldehyde fertilizer method and composition A new method of preparing a new aminoureaformaldehyde fertilizer composition which exhibits high cold water insoluble nitrogen (CWIN) levels and high Availability Indices (AI). The method utilizes the discoveries that ammonia compounds, usually ammonium s... | 11/30/1993 |
| 5177205 | Method for obtaining a solid polycrystalline material Method for obtaining an organic polycrystalline material having in particular electro-optical properties, said material obtained and an electro-optical modulator comprising said material. This method includes a stage (1) for preparing a powder having a size ... | 01/05/1993 |
| 5118852 | Tert-amine treatment A tert-amine which contains an acid-activated color body precursor is treated to prevent it or a derivative thereof, e.g., an amine oxide, betaine, or quaternary ammonium compound, from turning pink when exposed to acidic conditions by contacting it with ... | 06/02/1992 |
| 5093528 | Process for the production of secondary amine terminated polyethers and their use Process for producing a secondary amine terminated polyether from a primary amine terminated polyether in which the primary amine terminated polyether is reacted at elevated temperature with a carbonyl compound in the presence of hydrogen and a catalyst c... | 03/03/1992 |
| 5032164 | Modified lignosulfonate conditioning agent for urea particles Urea fertilizer is treated with a modified lignosulfonate to harden and provide anti-caking and anti-dusting properties to the fertilizer particles. The fertilizer/modified lignosulfonate mixture includes up to about 5.0% by weight modified lignosulfonate... | 07/16/1991 |
| 4962283 | Single pass continuous urea-sulfuric acid process Urea and sulfuric acid are reacted in an air-water spray in cocurrent heat exchange therewith to produce concentrated urea-sulfuric acid solutions.... | 10/09/1990 |
| 4879413 | Process for the preparation of a solid adduct of sulfuric acid and urea A method for processing exposed and developed photographic silver dye-bleach materials, in which the exposed and developed material is treated with aqueous bleaching preparations which contain (a) an acid component, (b) a silver complexing agent, (c) one ... | 11/07/1989 |
| 4725680 | Process for the preparation of carbamates, thiocarbamates and ureas The invention relates to a process for preparing carbamic acid derivatives of formula: ##STR1## in which R1 or R2 denotes a hydrogen atom or a substituted or unsubstituted, saturated or unsaturated aliphatic, cycloaliphatic or ... | 02/16/1988 |
| 4676821 | Sulfur-coated urea The present invention teaches a technique and provides for apparatus eminently useful for reducing the amount of sulfur currently needed by industry to coat water-soluble fertilizer materials such as, for example, granular or prilled urea. A further advan... | 06/30/1987 |
| 4587358 | Production of high-strength, storage-stable particulate urea One approach to improving storage stability, particularly that attribute characterized by reduction in the tendency for caking during storage of freshly prepared urea particles such as granules, is to treat the surface areas of the freshly prepared partic... | 05/06/1986 |
| 4542006 | Catalytic process for the production of urea and ammonium cyanate A catalytic process has been found to produce urea or its equivalent, NH4 NCO, under relatively mild pressure and temperature conditions. This process entails flowing a gas mixture containing NOx, CO, and a source of hydrogen such as... | 09/17/1985 |
| 4537990 | Method for growing single crystals of urea This invention relates to growing single crystals of urea having increased dimensions on the 110-110 faces by physically restricting growth of the 111 faces of a seed crystal while precipitating urea from a saturated alcoholic solution containing ammoniu... | 08/27/1985 |
| 4507139 | Acid type solid urea-nitric fertilizer The present invention relates to the reaction of phosphate rock with nitric acid and urea to produce nitrogen-phosphorus containing slurries, which slurries, in turn, may be granulated and dried to produce solid N-P fertilizer products with agronomically ... | 03/26/1985 |
| 4497739 | Synthesizing thiocarbamic acid esters A process for the synthesis of thiocarbamic acid esters by reacting amine compounds having a general formula ##STR1## wherein A is an arylene radical, simple or substituted by halogens hydrocarbon radicals, alkoxy groups, or can be an alkylene radica... | 02/05/1985 |
